They have brilliant hearing which warns them about dangers
Ears help rabbits to hear, of course! (But if it is arctic hare, even though it may hear better, it does not keep warmth inside.) Rabbits also use their ears to communicate with. They can move them backwards and forwards, lock them to the side, and they can rotate them so that the openings face one way or another -- the different positions mean different things to other rabbits.
Long ears are an advantage to a point. A wild rabbit or hare utilizes their ears not only for hearing, but also as a cooling mechanism.
camouflage helps rabbits survive by blending into their surroundings.
There are many rabbits with ears sticking up. My Netherland dwarf rabbit, which is the smallest rabbit, has upright ears. Also dutch rabbits and rex rabbits do, to name some. Hope this is of some help :)
Because they are differently shaped, molded to help them survive in their habitats.
A mouse has small ears but their small ears can help them hear things that are quite far away.
The plural form for rabbit ears is (one) rabbit's ears; or (two) rabbits' ears.
Elephants ears are both shade and fans, and help to keep elephants cool in hot environments.
True
It's not true that rabbits with long ears have a longer lifespan than rabbits with short ears. Ear length has no bearing on a rabbit's lifespan.
It depends on its species and size. Tiny rabbits have tiny ears.
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